Raymarine ST60 Log transducers

[CPD]

"simply plug the SOG-2 or SOG-1 into your ST60 and you will have the full functionality of the ST60 system (distance log, real wind speed etc) without a paddlewheel."

.................... but this gives speed over the ground, not through the water ??

 

[AntarcticPilot]

Would you be happy to share a sketch of the modifications to the standard unit you used to make it work ?. Many thanks ....

Sorry - the modifications were done by NASA,not me.

 

[AntarcticPilot]

"simply plug the SOG-2 or SOG-1 into your ST60 and you will have the full functionality of the ST60 system (distance log, real wind speed etc) without a paddlewheel."

.................... but this gives speed over the ground, not through the water ??

Exactly. I wanted STW, for several reasons, not just to feed into the wind. The main one is that an STW sensor is more responsive than SOG from a GPS; second the STW sensor gives wind relative to the water, and finally I'd forgotten how useful an indication of tides etc. an STW sensor is!

 

[RichardS]

"simply plug the SOG-2 or SOG-1 into your ST60 and you will have the full functionality of the ST60 system (distance log, real wind speed etc) without a paddlewheel."

.................... but this gives speed over the ground, not through the water ??

Ah yes .... I'm in the Med so it's the same thing but I should have read the entire thread.

Richard

 

[dulls]

How about this? (probably costs an arm and a leg!)

http://www.airmar.com/uploads/brochures/UST800-850-UDST800_SmartSensor.pdf

M.

After mutch hunting on google it comes in at about 1000 pounds for speed depth temp and is nmea 2000 Airmar UDST800 Ultrasonic Smart™ Sensor NMEA2000 Part 44-218-1-01 seems to be speed through water.

 

[AntarcticPilot]

Ah yes .... I'm in the Med so it's the same thing but I should have read the entire thread.

Richard

Well, I understand there's a fairish current in places like the Straits of Messina! Scylla and Charybdis come to mind...

 

[Porthandbuoy]

Have a look at Cruzpro.

 

[RichardS]

Have a look at Cruzpro.

Errrrr ..... post #60?

Richard

 

[RichardS]

Well, I understand there's a fairish current in places like the Straits of Messina! Scylla and Charybdis come to mind...

We also discussed this before. Places in the Med with a fairish current comprise about 0.001% of the surface area so I think we can ignore them.

Richard

 

[CPD]

Any progress report available on performance of the NASA modified unit AntartcticPilot ?

 

[AntarcticPilot]

Any progress report available on performance of the NASA modified unit AntartcticPilot ?

It works! I've only been out a few times, but I've had no problems with it.

However, the unit I had was a specially modified one by NASA. They intend to market it, but I don't know when. It is NOT the EML sensor that they sell; that outputs NMEA, not the pulse output which is required for the ST60.

 

[CPD]

Excellent news - many thanks !!!

 

[cpedw]

I just had this discussion with NASA:
Hi Derek,

Yes there is a version of the EM log coming soon that will suit, probably by mid to end of November.

Kind regards,

NASA Marine Ltd
Boulton Road
Stevenage
Herts
SG1 4QX
United Kingdom
www.nasamarime.com

From: Derek Wilkinson
Sent: 26 October 2020 08:45
To: info@nasamarine.com
Subject: EML-2

I have heard that there might be a verion of the electromagnetic log that would directly replace the paddlewheel log transducer of a Raymarine ST60 instrument.

Is that correct? Can you give any indication when the new version will be available? I would be keen to get one.

Regards,
Derek Wilkinson

 

[cpedw]

It's a bit late but they are still promising Electromagnetic Log (transducer and data box) - Nasa Marine Instruments :

Coming soon:
A pulse output version of the Electromagntic Log to suit any previous NASA Marine paddlewheel log including all Target, Clipper Logs and Duet. Also works with Raymarine ST60 Log display.
Click product video below, connected to a Clipper Duet combined Depth and Log. Shown with kind permission of one of our valued beta testers.

 

[AntarcticPilot]

It's a bit late but they are still promising Electromagnetic Log (transducer and data box) - Nasa Marine Instruments :

Coming soon:
A pulse output version of the Electromagntic Log to suit any previous NASA Marine paddlewheel log including all Target, Clipper Logs and Duet. Also works with Raymarine ST60 Log display.
Click product video below, connected to a Clipper Duet combined Depth and Log. Shown with kind permission of one of our valued beta testers.

I got a beta test version - it works.

 

[dolabriform]

It's a bit late but they are still promising Electromagnetic Log (transducer and data box) - Nasa Marine Instruments :

Coming soon:
A pulse output version of the Electromagntic Log to suit any previous NASA Marine paddlewheel log including all Target, Clipper Logs and Duet. Also works with Raymarine ST60 Log display.
Click product video below, connected to a Clipper Duet combined Depth and Log. Shown with kind permission of one of our valued beta testers.

That's good, but it would be great if they came out of the dark ages and made it NMEA2000 as well,

 

[MapisM]

I got a beta test version - it works.

Did you check (or know) how it behaves with a bit of slime/fouling?

 

[AntarcticPilot]

Did you check (or know) how it behaves with a bit of slime/fouling?

Not yet - not enough sailing this year!

 

[Spirit (of Glenans)]

Unfortunately, it's all old school Seatalk, which is not compatible with NMEA. I specifically want to connect to my existing ST60 log instrument, which means Seatalk.

As I undertand it, NMEA is (are?) the initials of the National Marine Electronics Association. Currently there are two protocols in use, specified by that organisation, NMEA2000 and the older NMEA 0183, which is now becoming obsolete. NMEA2000 is also referred to as N2K.
Raymarine brought out their own system, called Seatalk, (now referred to as ST1), which was basically 0183 but with proprietary connectors and some unique sentences for communication between their proprietary products. N2K is an improvement on the older protocol in that it incorporates a backbone cable into which drop cables can be added to connect compatible devices, and it also carries power to all the devices in the network, requiring only one power cable
There a number of brands of N2K circuit wiring, with standardised connectors e.g. Devicenet. STNG differs from these in that it has proprietary connectors and an extra wire in order to help integrate ST1 devices into its networks.
Raymarine market an adaptor (E22158), to connect ST1 devices into an STNG network, and an interface cable, (A0645) to connect STNG into a standard N2K network. Furthermore there are devices sold by other companies, such as Actisense, to achieve similar results, and some devices, such as the Digital Yacht AIT 2000 AIS Class B Transceiver which will receive NMEA 0183 sentences from older devices such as VHFs and Wind instruments and "multiplex" them to a device, such as a MFD, operating in N2K. Raymarine and its partner brands are now selling MFDs featuring standard N2K connectors, possibly with the intention of phasing out their STNG ones.

 

[prv]

Raymarine brought out their own system, called Seatalk, (now referred to as ST1), which was basically 0183

Seatalk has nothing to do with NMEA 0183. The only thing they have in common is a coincidental bitrate, 4800bps. Even the signalling voltages are different, and Seatalk is binary where NMEA0183 is ASCII text-based.

Pete